Scanning
Can the San Francisco housing crisis be solved on the median space of streets?
95 total median strips 22,000 linear feet
27 acres of land
8,200 new floating units
California St.
Van Ness Ave.
Dolores St.
Geary Blvd.
Typological Research
5.4
ns may be combined with parking lane planters, chibulb-outs, or other traffic calming measures where it able to be further moderate speed. ns may combined withtraffic parking lane planters, chi-
bulb-outs, or other traffic calming measures where it ns and than traffic 3 feet wide, able toislands furthermore moderate speed.including should be landscaped and used for stormwater mannt. When streetmore treesthan are desired, a median should ns and islands 3 feet wide, including inimumbeoflandscaped 5 feet wide,and including to provide should used forcurbs, stormwater mannt space for healthy root growth per Sections 6.1 nt. When street trees are desired, a median should 2. inimum of 5 feet wide, including curbs, to provide
nt space for healthy root growth per Sections 6.1 2.gets allow, medians should be built to the maximum possible, rather than providing a striped area outside dian. Landscaped so gets allow, mediansmedians should should be builtbetoconfigured the maximum aintenance personnel do not have to work in outside traffic possible, rather than providing a striped area by providing a minimum foot walkable edge or so dian. Landscaped medians2 should be configured area adjacent to the median. aintenance personnel do not have to work in traffic
by providing a minimum 2 foot walkable edge or and adjacent landscaping of medians area to the median. should emphantinuity on throughways and ceremonial streets. aping, lighting and furnishings should mainand landscaping of street medians should emphaimilar look and feel even and as the corridor varies ntinuity on throughways ceremonial streets.in e, scalelighting and intensity. On furnishings neighborhood streets, they aping, and street should mainave a more imilar lookflexible, and feelorganic even asdesign. the corridor varies in
e, scale and intensity. On neighborhood streets, they should notflexible, interfere with driveway ave a more organic design. access, that is the purpose of the installation (i.e. access ement).
lanes, by providing a minimum striped area adjacent to the m
Design and landscaping of me size continuity on throughway A median is the portion of the roadway separating GUIDELINES opposThe functions and benefits of medians include: Landscaping, lighting and stre tain a similar look and feel eve ing directions of the roadway, or local lanes from through At crossings, the end of medians should be flush with separate opposing traffic; land use, scale and intensity. O travel lanes. Medians may be depressed, raised, or flush the edge of the crosswalk and should not be significantly may have a more flexible, orga with the road surface. Medians are generally linear and rounded. A thumbnail, or raised island on theforintersection provide a recovery area out-of-control vehicles; continuous through a block. An island is a defined as an side of the crosswalk, should be provided in medians that Islands should not interfere w area between traffic lanes used for control of traffic move provide emergency stopping area; function as pedestrian refuge an islands. unless that is the purpose of th ments. Within an intersection, a median is considered an management). island.1 provide space for speed changes and storage for leftand u-turns; | 133 Raised medians and islands provide space to locate pedes minimize headlight glare; trian safety features and traffic control devices, amenities, Landscaped medians provide visual landscaping and stormwater management. They can coninuity to a corridor restrict through travel on streets with two-way left provide traffic calming and aesthetic benefit, but the additurn lanes or where cross streets intersect with more tion of medians alone may also causeMedians an increase provide in vehicle significant throughways; for trees and speeds by reducing friction between space opposing directions.
CHAPTER 5.0
Medians and Islands
way, either in mid-block locations, or to create gateways at entrances to residential streets. Islands may also be found at corners.
B E T T E R
1
AASHTO Green Book
S T R E E T S
P L A N
planting, visually break down the scale Medians provide of the right-of-way, space for trees and and createvisually space for planting, pedestrian break downrefuges. the scale of the right-of-way, and create space for pedestrian refuges.
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B E T T E R
S T R E E T S
P L A N
California St.
1 total median strip
1.5 miles long
5 to 8 feet wide
Adjacent rail system
Midterm
Final